DTC Diagnosis Procedure

1. Ignition switch OFF.
2. Check signal between BCM harness connector and ground using oscilloscope.

   (+)		(-)	Condition	Signal (Reference value)
   BCM
   Connector	Terminal
   B71	63, 62	Ground	When Intelligent Key is in the antenna detection area.	Courtesy of NISSAN NORTH AMERICA, INC.
   			When Intelligent Key is not in the antenna detection area.	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

Replace BCM. Refer to BCM : Removal & Installation .

NO

GO TO 2.

1. Disconnect BCM connector and inside key antenna connector.
2. Check continuity between BCM harness connector and inside key antenna harness connector.

   BCM		Inside key antenna		Continuity
   Connector	Terminal	Connector	Terminal
   B71	63	B65	1	Yes
   	62		2

3. Check continuity between BCM harness connector and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   B71	63		No
   	62

Is the inspection result normal?

YES

GO TO 3.

NO

Repair or replace harness.

1. Replace inside key antenna (New antenna or other antenna).
2. Connect BCM connector and inside key antenna connector.
3. Check signal between BCM harness connector and ground using oscilloscope.

   (+)		(-)	Condition	Signal (Reference value)
   BCM
   Connector	Terminal
   B71	63, 62	Ground	When Intelligent Key is in the antenna detection area.	Courtesy of NISSAN NORTH AMERICA, INC.
   			When Intelligent Key is not in the antenna detection area.	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

Replace inside key antenna. Refer to INSIDE KEY ANTENNA : Removal & Installation .

NO

Replace BCM. Refer to BCM : Removal & Installation .